(19)
(11) EP 2 910 395 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
04.11.2015 Bulletin 2015/45

(43) Date of publication A2:
26.08.2015 Bulletin 2015/35

(21) Application number: 14195417.2

(22) Date of filing: 28.11.2014
(51) International Patent Classification (IPC): 
B60K 17/14(2006.01)
 B60K 17/04(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 19.02.2014 US 201414184472

(71) Applicant: Fairfield Manufacturing Company, Inc.
South Lafayette IN 47903 (US)

(72) Inventor:
  • Noerenberg, Ryan L.
    Otterbein, IN Indiana 47970 (US)

(74) Representative: Puschmann Borchert Bardehle Patentanwälte Partnerschaft mbB 
Bajuwarenring 21
82041 Oberhaching
82041 Oberhaching (DE)

   


(54) Planetary gearbox with integral service brake


(57) A planetary gearbox with substantial speed reduction includes a stationary spindle, an integral service brake, and a parking brake. The integral service brake resides radially outwardly with respect to the parking brake in a stacked arrangement such that axial space is conserved yielding an axially short and compact gearbox. An oil passageway extends radially through the spindle. A rotating input shaft drives the planetary gearbox and produces an output in the form of a rotatable housing. The service brake rotors have a large surface area and are keyed to the rotatable hub enabling efficient brake cooling and efficacious brake performance in a compact arrangement.







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Search report